Dyeing booster



J. L. GREEN DYEING BOOSTER Dec. 26, 1944.

Filed Dec. 26, 1941 Green,

the booster vat;

Patented Dec. 26; 1944 2,366,100 J j prisms BOOSTER l ack l zewis Green, DuncamSi C. 1

Application attests 26, 1941, Serial No. 424,433

i i 3 Claims.

This invention relates to a dyeing method and booster for dyeing fabrics of the. type wherein the fabric is continuously passed through a dyeing liquor.

An object oi the invention is to deviseadyeing method and boosterlfor greatly increasing the yardage capacity for a given size of booster box t provide ample time for the proper reduction and development of the-most concentrated vat mixes when padded inthepigment or unreduced -form; and to provide a dyeing method and ap:

paratus which involves considerable savings in a cost of operation over the present jig method of dyeing. v i There isa very great need for a dyeing method or process whereby the cloth could be kept in the booster for from four to eight minutes, or for a booster that would hold from 300 .to 600 yards of cloth, and which could be run continuously. This booster would necessarily have to be limited in size, as the volume of liquor is a determining factor in the dyeing cost. With a booster capacity of from 300 to 600 yards, color could be applied on the padder in the raw or unreduced state, in. i which state it is stable atany concentration; and then" could be run into the booster box fora long enough time tothoroughlyreduce and. develop the required shade; thence, it could be washed,

- oxidized and soaped in the manner that is used at present. g 3 t A preferred embodiment of myinvention is ilustrated in the drawing in which. Figure l is a side elevational view of the booster showing the manner in which the fabric is mounted and guidedon the series of rollers within Figure 2 is an end view of Figure 1;. 1

Figure 3 is a plan view of Figure 1; and

. Figure 4 is a fragmentary view showing in per spective the manner in which the web is. guided out of the center of the booster vat. Referring to the drawing V indicates a booster vat which may be made of any suitable material such as cast iron, stainless steel, or even of wood.

Thisvat may be of any desired capacity to meet the needs of any particular, installation; A series of rolls are mounted in the vat to guide the web of fabric in a spiral arrangement within the vat. These rolls are divided into a number of sets for supporting different sections of the spiral arrangement. For example, rolls A, Al, A2 and A3 are mounted in'a rectangular arrangement to support one section of the spiralarrangement;

rolls B, Bl, B2 and B3 are arranged within the first set of rolls for supporting a second section of the spiral arrangement, and rolls C, Cl, C2 and C3. are arranged within the second set to support a third section of {the spiral arrangement.

Rolls A, B andC arepreferablygeared together as shown in the drawing and are driven at a con-.

stant speed from a suitablesource of power, not shown, In alike manner rolls Ait, B3 and C3 are geared together to be driven at thesame speed as r0115. A, B and C and preferably from the same source ofpower'. A roll D is mounted in" one end of the vat betweenvrolls C2 and C3 and parallel with these rolls. A roll E is mounted substantially inthe same horizontalplarie .as D but at anangle of to roll D. RollF is mounted in a plane fJ'u-st above the plane or roll ahd at right angles to ro-ll D, and this roll is positioned at onesideofthe vat andoutsideof the spiral arrangeemnt of the web. A similar roll F] is mounted vertically above roll F and parallel thereto at thetop of the vat, and a roll El is mounted vertically above and-parallel with the roll E outsidefof tlievat. The rolls may be madeof hard rubber, with a steel shaft or of some non-corrosive. alloy,such as stainless steel. All

bearings designated as outside bearings are ofthe roller or .ball type, and all inside bearings can be of any suitable type of material, such as graphite or fibrous composition, The inside rolls. are

mounted on a stationery frame work, whichi-snot shown, but whichmay be. made in any manner desired. The frame must be placed in such away as to allow clearance foroperatio'n.

Operation; The machine will operate at controlled sp ed by using rheostats and compensator rolls or by usin geared motors to operate at constant tension.

Either method willbe satisfactoryj The cloth is firstrun through a tworoll padder, with color boxattachedwhere it is impregnated with pigment or unreduced color (or the color .may be reduced if the shade is not toodeep).

The padder is not shown in the drawing .but'is located to theleft of Figure l. The pathof the web through the vat is represented. by the dotdash line We, Wb, We, etc, in Figure. l. Coming .from the padder. the cloth or web W is run over a roll, designated as H, and having ball or roller bearings, and then down at We and underthe free running roll designated A-l then along Wb and over the roll G-5, and under the free running roll,

A-2; then along We and over thegear-drivenroll, A-3, which is driven at. the same speed as the padder is running. It then runsalong Wd and over roll G, and over the next driven roll A, and

struction of the cloth, or by the depth of shade desired. From the .A series of rolls, the cloth comes ofi? at A-2 and runs along W) and over the driven rollB-3, and on over the roll G-l; then over the driven roll B down under the roll B-l, over the roll G-4, under the roll B-2, and back over roll B3 and inside the strand coming from A2.

The E series of rolls is then filled in the same manner as the A series. Coming off at 3-2, the cloth is run along W9 and over the driven roll -3, over (3-2, over the driven roll C, down under C-l, over G-3, under C-2, and back over roll C3 and inside the strand coming from B2. The C series of rolls is filled as the others; and then the cloth comes off at 0-3, and down along Wh and under D, then along Wi, passing under and back over roll E, which is at a forty-five degree angle to the direction of the on-coming cloth, and consequently, turns the cloth over and at right angles to its former direction. It then runs along W7 and passes beneath F, then along Wk up and over F-l and along Wm to E-l, which is also at a forty-five degree angle to F-.l, and running under and back over this roll, the cloth is again turned'at right angles as at Wu, and is ready to proceed through the series of boxes for washing, oxidizing and soaping and washing as before mentioned.

As a variation to the method just described, the process could be reversed, and the cloth run in over H, then over and under E-I (which would have to be at a forty-fivedegree angle to H), and over F-I, down to and under F, and over and under E; over D and down under 0-2, and back up and over 0-3. The booster could then be filled from the inside out in the reverse order to the prescribed method, finally coming off of roll A-2, and thence through the finishing process as before.

From the foregoing description it will be clear that the'web material is arranged on the series of rollers in a spiral arrangement consisting of a plurality of laps or convolutions, the inner end of the spiral being brought laterally out from the center of the spiral in a direction along the axis of the spiral to the side thereof and then upwardly and outof the vat. Different concentric sections of the spiral are supported on different sets of rollers, each set of rollers carrying a plumay be provided.

The series of rolls designated as G are only for the purpose ofholding the cloth up and keep it from sagging. a

The old dyes are let out to allow re-filling by vat.

It is the general practise of dyers to have sufilcient cloth for filling a machine, and to usethis cloth asa leader so that when a lot has been completed, this leader is sewed in at the end,

and is left standing in the machine until the I next shade is made ready to run or until the machine is operated again.

My improved booster and method of dyeing, by the reason of the fact that it allows an increase of from-four to eight times the present possible yardage in a given size booster box, will allow ample time for the proper reduction and development of the most concentrated vat mixes when padded in the pigment form, and will also have the added advantage of giving more color value for those shades that are now run continuously, by reason of the fact that it gives longer time for reduction and development of the shades. There will be a saving in cost of operation by taking all) the vat work off of the pad and jig method (as hereinbefore explained), and running the same shades constantly, thereby greatly increasing the rate of production and the quality of the work.

I claim: I

1. In'apparatus for treating web material in a dyeing process, the combination of a vat for bold ing liquid, a series of rollers for supporting a section of said web in a spiral arrangement within said vat and below the level of said liquid, an inner roller mounted within said spiral arrangement and arranged at an angle t the axis of said spiral for supporting a section of said 'web extending from the inner end of said spiral and for guiding another section of said web in flat sheet form substantially along the axis of said spiral to one side of said spiral, and another roller positioned within said vat for supporting the outer end of said axial section of said web and for directing another sectionof said web in flat sheet form in a substantially vertical direction out of said liquid.

2. Dyeing apparatus according to claim 1 I wherein said series of rollers are arranged in a means of a hole and stopper in the bottom of the number of sets for supporting different concentric sections of said spiral arrangement, and each set of rollers carries a numbe'rof turns or laps of said web arranged in contiguous spiral relation.

3. In apparatus for treating web material in a dyeing process, the combination of a vat for holding liquid, a set of web guides mounted within said vat and below the level of said liquid for supporting at least one lap of said web beneath the surface of saidliquid, and another set of Web guides mounted in said vat for supporting at least onelap of web within but spaced from said first mentioned lap, whereby the laps carried by said two sets of guides are supported in a spiral arrangement below the surface of said liquid, an inner web guide mounted within said spiral and at an angle to the axis thereof for supporting and guiding the inner end of saidspiral arrangement. in flat sheet form from the center of saidspiral laterally to the side thereof, and a web guide mounted outside of said spiral and within said vat for receiving said web from said inner guide and directing said web upwardly and out of said liquid.

JACK L. GREEN. 

